Get an overview of your budget. Figure out how many people will be traveling with you and how much you want to spend.
Look over the map of Alaska and plan your itinerary. The Alaska Railroad offers three train trips in summer. The Denali Star runs between Anchorage and Fairbanks--a 12-hour trek--stopping along the way at Denali National Park. The Coastal Classic travels between Anchorage and Seward, and the Glacier Discovery connects Anchorage with Prince William Sound and Spencer Glacier, each about a five-hour trip.
Choose your travel dates. All of the train routes operate on a daily basis between mid-May and mid-September; only the Anchorage/Fairbanks line runs in winter, and then only on weekends. Keep in mind that prices are lower in May and September (termed "value" season) than June and July.
Choose your class of service. The Denali Star and the Coastal Classic offer the possibility of premium class. The price is correspondingly higher.
Make reservations and purchase tickets online at the Alaska Railroad Corporation site or by calling 907-265-2494 or 800-544-0552. Your reservation itinerary will be mailed to you and your boarding pass issued when you check in. Arrive at the station at least one hour prior to departure.
Arrange transportation to your point of departure in Alaska. Secure lodging for your stay.